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. 2019 Aug 2;5(8):e02206. doi: 10.1016/j.heliyon.2019.e02206

Fig. 4.

Fig. 4

Removal and concentration of methylene blue (MB) after water contaminated with 50 mg/L of MB was treated with L. minor for 24 hours. Values are presented in the average of triplicates ±SD. Different letters (a, b, c, d, e, and f) indicate significant differences among the results (p < 0.05).